The T1FA2 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 1.71 to 1.765 GHz, Average Power 1 W, Average Power Forward 1 W, Insertion Loss 0.25 dB, Isolation 30 dB. Tags: Module with Connectors, Coaxial Isolator. More details for T1FA2 can be seen below.